var panels = new Array('panel1', 'panel2', 'panel3', 'panel4', 'panel5', 'panel6', 'panel7');
      var selectedTab = null;
      function showPanel(infotab, name)
      {
        if (selectedTab) 
        {
          selectedTab.style.backgroundPosition = "0px 0px";
          selectedTab.style.height = "25px";
        }
        selectedTab = infotab;
        selectedTab.style.backgroundPosition = "0px -80px";
        selectedTab.style.height = "50px";
        for(i = 0; i < panels.length; i++)
        {
          document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
        }
        return false;
      }